2008 DODGE RAM 3500 DIESEL warning light

Lock Your Vehicle
Always remove the key from the ignition and lock all
doors when leaving the vehicle unattended, even in your
own driveway or garage. Try to park your vehicle in a
well-lighted area and never invite theft by leaving ar-
ticles of value exposed.
Exhaust Gas
WARNING!
Exhaust gases contain carbon monoxide, a potentially
toxic gas that, by itself, is colorless and odorless. To
avoid inhaling these gases, the following precautions
should be observed:
²Do not run the engine in a closed garage or in confined
areas any longer than needed to move your vehicle in
or out of the area.
²If it is necessary to sit in a parked vehicle with the
engine running for more than a short period, adjust
your climate control system to force outside air into
the vehicle. Set the blower at high speed and the
controls in any position except OFF or MAX A/C.
²The best protection against carbon monoxide entry
into the vehicle body is a properly maintained engine
exhaust system.
Be aware of changes in the sound of the exhaust system,
exhaust fumes detected inside the vehicle, or damage to
the underside or rear of the vehicle. Have a competent
authorized mechanic inspect the complete exhaust sys-
tem and adjacent body areas for broken, damaged,
deteriorated or mispositioned parts. Open seams or loose
connections could permit exhaust fumes to seep into the
passenger compartment. In addition, inspect the exhaust
system each time the vehicle is raised for lubrication or
oil change. Replace or adjust as required.
76 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

NOTE:The Electronic Speed Control System has been
designed to shut down if multiple speed control switch
buttons (i.e., SET and CANCEL) are operated simulta-
neously, in order to ensure proper operation. The system
can be reactivated by pushing the speed control switch
ON/OFF button and re-establishing the desired vehicle
SET speed.
To Activate
Push the ON/OFF button to the ON position. An indi-
cator light in the instrument cluster illuminates when the
system is on.
To Set At A Desired Speed
When the vehicle has reached the desired speed, press
and release the SET button. Release the accelerator and
the vehicle will operate at the selected speed.
To Deactivate
A soft tap on the brake pedal, normal braking, clutch
pressure while slowing the vehicle, or pressing the CAN-
CEL button will deactivate speed control without erasing
the memory. Pushing the ON/OFF button to the OFF
position or turning off the ignition erases the memory.
WARNING!
Leaving the speed control ON when not in use is
dangerous. You could accidentally set the system to
cause it to go faster than you want. You could lose
control and have an accident. Always leave the sys-
tem OFF when you aren't using it.
140 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

Vehicles equipped with a 4±speed automatic transmis-
sion may exhibit several 4-3 downshifts under the above
conditions. To reduce the frequency of the downshifts
and to improve vehicle performance, it is advisable to
lock out overdrive by pressing the O/D OFF button
located at the end of the gear shifter.
WARNING!
Speed control can be dangerous where the system
can't maintain a constant speed. Your vehicle could
go too fast for the conditions, and you could lose
control. An accident could be the result. Don't use
speed control in heavy traffic or on roads that are
winding, icy, snow-covered, or slippery.
OVERHEAD CONSOLE WITH ELECTRONIC
VEHICLE INFORMATION CENTER (EVIC) Ð
DIESEL ONLY
The overhead console contains dome/reading lights, and
an Electronic Vehicle Information Center (EVIC).
Dome/Reading Lights
Located in the overhead console are two dome/reading
lights.
The dome/reading lights illuminate when a door is
opened or when the interior lights are turned on by
rotating the dimmer control located on the headlight
switch.
The reading lights are activated by pressing on the
recessed area of the corresponding lens.
NOTE:The dome/reading lights will remain on until
the switch is pressed a second time, so be sure they have
been turned off before leaving the vehicle.
142 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

storage area into separate compartments. Lift the lower
handle on the front of the armrest, and raise the armrest
for access to the lower storage bin. On Quad Cabtand
Mega Cabtmodels the rear of the floor console offers a
power outlet, a tip out bin and a rear air duct (Mega Cabt
Only).
WARNING!
²This armrest is not a seat. Anyone seated on the
armrest could be seriously injured during vehicle
operation, or an accident. Only use the center
seating position when the armrest is fully upright.
²In an accident, the latch may open if the total
weight of the items stored exceeds about 10 lbs (4.5
kg). These items could be thrown about endanger-
ing occupants of the vehicle. Items stored should
not exceed a total of 10 lbs (4.5 kg).
CAUTION!
²Many accessories that can be plugged in draw
power from the vehicle's battery, even when not in
use (i.e., cellular phones, etc.). Eventually, if
plugged in long enough, the vehicle's battery will
discharge sufficiently to degrade battery life
and/or prevent engine starting.
²Accessories that draw higher power (i.e., coolers,
vacuum cleaners, lights, etc.), will degrade the
battery even more quickly. Only use these inter-
mittently and with greater caution.
²After the use of high power draw accessories, or
long periods of the vehicle not being started (with
accessories still plugged in), the vehicle must be
driven a sufficient length of time to allow the
generator to recharge the vehicle's battery.
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 169
3

3. Turn Signal Indicators
Lights in instrument cluster flash when outside turn
signals are operating.
4. Tachometer
The tachometer indicates engine speed in revolutions per
minute.
CAUTION!
Do not operate the engine with the tachometer
pointer at high rpm for extended periods. Engine
damage may occur.
5. Airbag Indicator Light
The indicator lights and remains lit for 6 to 8 seconds
when the ignition is first turned on. If the light stays on,
flickers or comes on while driving, have the airbag
system checked by an authorized dealer.6. High Beam Indicator
This indicator shows that headlights are on high
beam.
7. Seat Belt Reminder Light
When the ignition switch is first turned ON, this
light will turn on for five to eight seconds as a bulb
check. During the bulb check, if the driver's seat
belt is unbuckled, a chime will sound. After the bulb
check or when driving, if the driver seat belt remains
unbuckled, the Seat Belt Warning Light will flash or
remain on continuously. Refer to9Enhanced Driver Seat
Belt Reminder System (BeltAlertt)9under ªOccupant
Restraintsº in section 2.
8. Speedometer
The speedometer shows the vehicle speed in miles per
hour and/or kilometers per hour.
190 UNDERSTANDING YOUR INSTRUMENT PANEL

during repair or replacement, be sure to keep a record of
the reading before and after the service so that the correct
mileage can be determined.
The two trip odometers show individual trip mileage. To
switch from odometer to trip odometers, press and
release the Trip Odometer button.
To reset a trip odometer, display the desired trip odom-
eter to be reset then push and hold the button until the
display resets (approximately two seconds).
Vehicle Warning Messages
When the appropriate conditions exist, messages such as
ªdoorº (indicates that a door(s) may be ajar), ªgASCAPº
(which indicates that your gas cap is possibly loose or
damaged), and ªnoFUSEº (indicates that the IOD fuse is
removed from the Integrated Power Module), will dis-
play in the odometer.NOTE:Most warnings will display in the EVIC (Elec-
tronic Vehicle Information Center).
NOTE:There is also an engine hour function. This
indicates the total number of hours the engine has been
running. To display the engine hours perform the follow-
ing: Place the ignition in RUN, but do not start the
engine. With the odometer value displayed, hold the trip
button down for a period of 6 seconds. The odometer will
change to trip value first, then it will display the engine
hour value. The engine hours will be displayed for a
period of 30 seconds until the ignition is turned off or the
engine is started.
16. Front Fog Light Indicator Ð If Equipped
This light shows when the front fog lights are ON.
UNDERSTANDING YOUR INSTRUMENT PANEL 193
4

17. Malfunction Indicator Light (MIL)
This light is part of an onboard diagnostic system
which monitors the emissions and engine control
system. If the vehicle is ready for emissions
testing the light will come on when the ignition is first
turned on and remain on, as a bulb check, until the
engine is started. If the vehicle is not ready for emissions
testing the light will come on when the ignition is first
turned on and remain on for 15 seconds, then blink for
five seconds, and remain on until the vehicle is started. If
the bulb does not come on during starting, have the
condition investigated promptly.
If this light comes on and remains on while driving, it
suggests a potential engine control problem and the need
for system service.
Although your vehicle will usually be drivable and not
need towing, see your authorized dealer for service as
soon as possible.CAUTION!
Prolonged driving with the MIL on could cause
damage to the engine control system. It also could
affect fuel economy and drivability.
If the MIL is flashing, severe catalytic converter
damage and power loss will soon occur. Immediate
service is required.
18. Brake System Warning Light
This light illuminates when the ignition key is turned to
the ON position and remains on for a few seconds. If the
light stays on longer, it may be an indication that the
parking brake has not been released. This light will
illuminate if the brake fluid is low, especially when
braking or accelerating hard. This light will illuminate if
the ABS indicator light has a malfunction. This light will
flash if the engine is running and the parking brake is on.
194 UNDERSTANDING YOUR INSTRUMENT PANEL

If the light remains on when the parking brake is
released, it indicates a possible brake hydraulic system
malfunction. In this case, the light will remain on until
the cause is corrected.
If brake failure is indicated, immediate repair is necessary
and continued operation of the vehicle in this condition is
dangerous.
Acceleration which causes the rear wheels to slip for a
period of time may result in the red brake light illumi-
nating and a brake switch code being set on ABS
equipped vehicles. Depressing the brake pedal should
extinguish the red brake light.
19. ABS Warning Light
This light monitors the Anti-Lock Brake System
which is described elsewhere in this manual. This
light will come on when the ignition key is turned to the
ON position and may stay on for five seconds. If the ABS
light remains on or comes on during driving, it indicatesthat the anti-lock portion of the brake system is not
functioning and that service is required. See your autho-
rized dealer immediately. The ABS light could also
illuminate during loss of traction and remain illuminated
until the brake pedal is pressed.
20. Cargo Light
The Cargo Light will illuminate when the
Cargo Light is activated by pressing the Cargo
Light Button on the headlight switch.
21. Electronic Throttle Control (ETC)
This light informs you of a problem with the
Electronic Throttle Control system. If a prob-
lem is detected, the light will come on while the
engine is running. If the light remains lit with
the engine running your vehicle will usually be drivable,
however, see your authorized dealer for service as soon
as possible. If the light is flashing when the engine is
running, immediate service is required and you may
UNDERSTANDING YOUR INSTRUMENT PANEL 195
4